Delegates seek to represent their district by responding directly to the wishes of their constituents. Trustees try to represent their district by exercising their best judgement and assuming that their constituents trust them to do the right thing.
The Xiognu brutally conquered other nomadic tribes, often killing their leaders and forcibly incorporating them into the Xiongnu state. This created resentment among the various conquered peoples, which, coupled with some uncertainty regarding an heir to the throne, led to a civil war in the Xiongnu state from 60-53 BC.
This helped give money to the country. This also made good trade for the country to get other products this country needed. With the need for cotton also shaped the need for machinery. With cotton the United States became more high tech with machinery like the cotton gin and it also gave us money and valuable trade.
The most logical combination would be to decrease the production of balls, and increase the production of nets, in order to achieve a market equilibrium that allows both products to be sold. For this it would be necessary to allocate more money to the production of nets, and to diminsh the cost referred to balls, until arriving at half of expense for each one.